Seat



Patented Feb. 19, 1929.

UNTED STATES 'ricerca PATENT OFFICE.

RAYMOND C. WILSON, OFKNEW YORK, N. Y., ASSIGNOR TO INTERNATIONAL MOTOR COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

SEAT.

Original application filed September 27, 1926; Serial No. 137,896.

Divided and this application filed July 2, 1927. Serial No. 203,081.

This application is av division ot my copending application, Serial No. lBTQG, wherein there is sit 'liortli an invention relating to improvements in swivel seats t'or use in vehicle buses or rail cars, ctc. This invention relates speciiically to a base t'or the seat described in my prior co-pending` application.

The sei-.t d"-scribed in my said eo-pending application is ot' such a nature that when unoccupied no downward stresses will be ini-- pressed upon the base, the weight ot the seat being' talren directly by the tio-or. Jhon the seat is occupied, however, the weight or the occupant is transmitted to the basi?. It is anl object oiI the invention, therefore, to provide al base of such a nature that the weight ot the occupant of the seat may be transmitted yieldingly to the `tloor. For a better understanding of the invention reference should be had to the following detailed description therot and to the accompanying drawings in which Figure l is an elevation, partly in section, sho y'ing a preferred form of my device.

'Figure 2 is a plan View taken along the line 2,#2 and looking in the direction ot the arrows.

in the drawings, a represents a base provided at its lower extremity with a flange o and at its upper extremity with a horizontal bearing` surface o?. Projecting downwardly and strengthened by Webs a is a vertical hearing` c, An annular clamping` jaw o enan annulus fb oi' rubber or other yielding` non-metallic material which receives the :Flange c to support it upon the Hoor a: in such a manner as to yieldingly absorb shocks and vibration-i. Screws h2 icifre the jaw Z) to the `door. .ii horizontal :tration surface i Tl e sea.; i ame c is torni/d with a sub traine c im 'ng a Yfriction Surface o2 and a downwardlj-,f extending); sha'lt ci5 which is rotatably journi'- led within the bearing` ci in the base. A plate c4, with which is carried the fric# tion disc c7, is mounted at the bottom ot the shaft c3 as by means oll the bolt c6. A spring c5 is interposed between the plate c4 and the tloor. l

When the chair is unoccupied the spring c5 supports the Weight of the chair upon the floor and maintains contact between the surprovided at the bottoni o if the bearing afl.

tace c on the base and the friction disc cT thereby preventing' rotation ot the chair. Then the chair is in use, however, the spring; c5 being' designed to carry a weight less than that of the average person, the surlaccs c2 and a2 will be in contact and the weicht of the occupant ot the chair will there'liore be transn tted to the base and through the annular block ot yielding non-metallic material o to the floor a". At such timos the surface c5 and the friction disc c7 will be disengaged and the chair may be rotated into anyy desired position.

lt will be seen that there has been provided a base ilior a Swivel chair ot .such a nature that when the chair is unoccupied it cannot be rotated, while when occupied, thc chair may readily be swiveled into any desired position. lVhen unoccupied the weight ot the chair is transmited directly to the loor and only when occupied does the base sustain any considerable burden, However, in order to render the hase su'iciently stable it is provided with a flange which is maintained Within an annulus of yielding nonmetallic material, the latter being' clamped to the floor, whereby the weight oi the oecupant may be cushioned and shocks and stresses due to vibration may be yieldingly resisted.

No limitation upon the scope ot theinvcntion is intended, except as recited in the following claims.

lhat I claim is:

1. In a seat pedestal, an annular flange on the pedestal at its lower extremity, an annun lar yielding non-metallic cushioning' element positioned above and below the flange so as to cushion it at. its upper and lower sides, and an annular clamp to secure the cushioningI clement to the floor.

.ln a seat pedestal, an annular horizontal Hanne on the basent its lower extremity, an anni-.il :ir yield infr nou-metallic cushioning elc ment havingl a U-shaped cross section, means therein in which the flange is seated to cushion it at its upper and lower sides, and an annular clamp to secure the cushioning element to the floor.

This specilication signed this day of June A. D. 1927.

RAYMOND c. WILsoN. 

